70 results about "Carbon disulfide" patented technology

The invention discloses a rectification mechanism and a carbon disulfide production system containing the same. The rectification mechanism comprises an integrated rectification tower, and an inner cavity of a shell of the integrated rectification tower is sequentially divided into a function-integrated pre-separation and sulfur removal area, a main rectification and hydrogen sulfide removal area and a condensation reflux area from bottom to top in the vertical direction; the pre-separation and sulfur removal area comprises a settling tank arranged at the lower part of the shell, a gathering cover arranged above the inner wall of the settling tank, and a gas rising pipe I arranged above the gathering cover; the invention belongs to the technical field of chemical separation, and achieves the technical effects that multi-stage functions of pre-separation, main rectification, precise purification, final condensation and the like are innovatively integrated in a single tower, so that the fundamental simplification and compactness of the equipment structure are realized; in the traditional process, separate coarse removal, fine removal and finished product towers are replaced by unique expanded settling tanks in the towers, filler layers of integrated plate heat exchangers, tower tops with spiral condensation channels and side-draw systems.

The invention relates to a method for preparing lithium sulfide at low temperature by microwave molten salt assisted carbon disulfide-lithium salt reaction, and belongs to the technical field of key materials of lithium-sulfur batteries and solid-state batteries. The technical problems of high energy consumption, difficulty in inhibiting by-products, insufficient purity and crystal phase stability, difficulty in continuous amplification and the like in the existing lithium sulfide preparation process are solved. Comprising the following steps: step 1, performing crushing, screening and grading treatment on lithium source powder; step 2, placing the treated lithium source powder and molten salt in a closed reactor, and introducing CS2 in a gas or liquid form; 3, applying microwave radiation, and reacting at a gas-solid-liquid multiphase interface to generate lithium sulfide; and 4, cooling the material after the reaction to room temperature, separating and recovering the fused salt to obtain the lithium sulfide powder. The method is low in reaction temperature, low in energy consumption, high in reaction rate, high in product purity and suitable for continuous and industrial production.

The invention belongs to the technical field of mineral flotation, and particularly discloses a xanthate collecting agent and a preparation method and application thereof, and the xanthate collecting agent is obtained by taking ether alcohol, carbon disulfide and caustic alkali as raw materials to react; the xanthate collecting agent is selected from at least one of formulas I-VI. The xanthate collecting agent has the advantages of being free of peculiar smell, easy to degrade, high in yield, high in purity, efficient in mineral flotation and the like, the working environment of the xanthate collecting agent in the production and using process can be effectively improved, operation is easy and convenient, cost is low, and industrial production is easy to achieve.

The invention provides a fullerene pyrrolidine enantiomer mediated cholesteric liquid crystal with circular polarization luminescence property and nonlinear anti-saturated absorption property, and a preparation method and application thereof. The method comprises the following steps: dissolving C60, paraformaldehyde and (R / S)-(+ / -)-alpha-methylbenzylamine in an organic solvent, and carrying out heating reflux reaction to obtain fullerene pyrrolidine enantiomer molecules; dissolving in carbon disulfide to obtain an enantiomer solution; dissolving achiral dye molecules in a solvent to obtain a dye solution; and dropwise adding the enantiomer solution and the dye solution into thermotropic liquid crystal molecules, and drying to obtain the thermotropic liquid crystal. The method is simple, the obtained cholesteric liquid crystal system shows a characteristic fingerprint texture and has a periodic spiral structure, and the doping proportion of chiral molecules is easy to adjust; the composite system has good time stability and is not prone to phase separation; the liquid crystal platform shows good circular polarization luminescence performance and third-order nonlinear optical property, and is a cholesteric liquid crystal platform with an integrated function.

This invention belongs to the field of mineral flotation technology, and discloses a flotation collector for non-ferrous metal sulfide ores, its preparation method, and its application. The collector uses O,O-dialkyldithiophosphate as a starting material, and reacts sequentially with a halocarboxylic acid ester, hydrazine hydrate, potassium hydroxide, and carbon disulfide in anhydrous ethanol in a three-step reaction to obtain the target product, O,O-dialkyldithiophosphate hydrazide-N′-dithiocarbamate potassium. Its molecular structure simultaneously contains three active groups: a dithiophosphate group, an hydrazide group, and a dithiocarbamate group. This invention achieves efficient process connection and smooth transition by optimizing the material ratio, temperature, and time of each reaction step, and has advantages such as mild reaction conditions, simple operation, few side reactions, high yield, and stable product. The prepared collector exhibits excellent collecting performance and good selectivity for non-ferrous metal sulfide ores such as chalcopyrite, and is suitable for widespread application in sulfide ore flotation processes.

The invention belongs to the technical field of chemical separation, and discloses a two-stage low-temperature condensation coupling compression separation high-purity hydrogen sulfide purification process and system. The system consists of a two-stage low-temperature condensation unit, a hydrogen sulfide compression unit and a hydrogen sulfide collection unit, the two-stage low-temperature condensation unit comprises a hydrogen sulfide liquid separation tank, a hydrogen sulfide low-temperature cooler, a hydrogen sulfide low-temperature liquid separation tank, a hydrogen sulfide heat exchanger and a hydrogen sulfide saline water liquid separation tank. Hydrogen sulfide raw material gas containing carbon disulfide impurities is sequentially introduced into a two-stage low-temperature condensation unit, carbon disulfide is liquefied and separated out preferentially, low-temperature water is adopted in the first stage, and materials subjected to cryogenic compression throttling are adopted in the second stage for heat exchange; pressurizing and compressing the primarily purified hydrogen sulfide gas-phase component, and then condensing and separating to remove trace carbon disulfide and recover cold energy, thereby finally obtaining the high-purity hydrogen sulfide with the purity of more than or equal to 99.95%. According to the invention, a low-temperature two-stage low-temperature condensation-pressurized compression condensation coupling separation technology is adopted, and deep removal of carbon disulfide is realized under the condition that a third component is not introduced.

The present disclosure relates to a method for manufacturing a regenerated material capable of effectively utilizing carbon contained in a battery material. The method for producing a recycled material includes the following steps (a) and (b). Step (a): preparing a battery material. Step (b): carbon disulfide is generated by reacting carbon and sulfur contained in the battery material.

The utility model discloses a carbon disulfide recovery device utilizing liquid nitrogen cryogenic condensation. The carbon disulfide recovery device comprises a tail gas conveying piece, a pre-cooling condenser, a gas-liquid separator, a low-temperature condenser, a liquid nitrogen condenser, a liquid nitrogen storage tank and a carbon disulfide collection tank. The carbon disulfide recovery device is provided with the pre-cooling condenser and the gas-liquid separator, pre-condensation is carried out through the pre-cooling condenser, the moisture content in carbon disulfide tail gas can be effectively reduced, and the problems of frosting, corrosion and equipment blockage in the follow-up process are solved. The gas-liquid separator further performs water removal treatment on the carbon disulfide tail gas to prevent a large amount of water vapor from entering the low-temperature condenser and the liquid nitrogen condenser and prevent the water vapor from being condensed into frost in an internal pipeline, so that the problem of ice blockage of the low-temperature condenser and the liquid nitrogen condenser is prevented, and the shutdown cleaning requirement caused by frosting and scale deposition can be reduced; and labor and maintenance costs are saved.

The present application pertains to a method of making carbon disulfide. The method comprises reacting methane and sulfur under conditions sufficient to produce carbon disulfide, hydrogen disulfide, and heat. At least a portion of the produced hydrogen disulfide is reacted with methane under conditions sufficient to produce a mixture comprising carbon disulfide and hydrogen. Advantageously, at least a portion of the heat from reacting methane and sulfur is employed in the reacting of at least a portion of the produced hydrogen disulfide with methane.

This invention discloses a low-resistance, easily puncturable disposable isolation plug and its preparation process, belonging to the field of isolation plug processing technology. It addresses the technical problem that the puncture and sealing performance of existing isolation plugs needs further improvement. Specifically, it comprises the following components by weight: 70-80 parts isoprene rubber, 10-15 parts modified vulcanization accelerator, 3-5 parts modified self-lubricating capsules, 2-3 parts sulfur, and 1-3 parts excipients. This invention obtains a modified vulcanization accelerator by reacting pretreated chitosan with carbon disulfide, prepares a polyurethane prepolymer using an antibacterial diol, further emulsifies it to form self-lubricating microcapsules, and modifies them with dopamine / graphene oxide. The isoprene rubber is then mixed with the modified capsules and excipients, followed by the addition of the modified vulcanization accelerator and sulfur for open mixing, curing, and vulcanization molding, resulting in a disposable isolation plug with low puncture force, low shedding, and good self-sealing properties.

The invention belongs to the field of pesticides, and discloses a compound with a structure as shown in a formula I. A preparation method of the compound comprises the following steps: reacting anthranilic acid with formamide, and then reacting with 1, 4-dibromobutane under the action of sodium hydride to obtain 3-(4-bromobutyl) quinazoline-4 (3H)-ketone; then, phenylacetic acid sequentially reacts with methyl alcohol, hydrazine hydrate, potassium hydroxide, carbon disulfide and 3-(4-bromobutyl) quinazoline-4 (3H)-ketone, and the quinazolinone derivative containing the oxadiazole unit is obtained. The quinazolinone derivative containing the oxadiazole unit is a novel compound, has an inhibiting effect on fusarium graminearum, rhizoctonia solani and botrytis cinerea, and can be used for preventing and treating plant diseases caused by fungi.

This invention discloses a bifunctional photocatalyst that modulates the hydrophobic interface of elemental sulfur (S) using aminated g-C3N4, its preparation method, and its application. The preparation method includes the following steps: (1) Preparation of aminated g-C3N4: Melamine is calcined and then ground to obtain g-C3N4; g-C3N4 and urea are dispersed in ethylene glycol, followed by a high-temperature reaction, and finally centrifuged, washed, and dried to obtain aminated g-C3N4; (2) Preparation of S / aminated g-C3N4: Aminated g-C3N4 is dispersed in ethanol to obtain dispersion A; elemental sulfur is dissolved in carbon disulfide to obtain solution B; solution B is then added to dispersion A, and the mixture is stirred at room temperature until the solvent is completely evaporated to obtain the bifunctional photocatalyst that modulates the hydrophobic interface of elemental sulfur (S) using aminated g-C3N4. The bifunctional photocatalyst of this invention has excellent stability and reproducibility. After five consecutive cycles, the catalytic activity did not show a significant decrease, demonstrating good cycle durability.

This invention relates to a continuous flow method for preparing taurine, comprising the following steps: S1, using an alkaline solution of ethanolamine and a carbon disulfide solution as raw materials, simultaneously introducing them into a pressurized first continuous flow reactor to react and obtain a first reaction solution; S2, cooling, filtering, washing, and extracting the first reaction solution to obtain thiazolium-2-thione; S3, dissolving thiazolium-2-thione in an organic acid to obtain a thiazolium-2-thione solution; using the thiazolium-2-thione solution and hydrogen peroxide solution as raw materials, simultaneously introducing them into a second continuous flow reactor to react and obtain a second reaction solution, which is then post-treated to obtain taurine. This invention provides an ideal synthetic route, and through continuous flow reaction, the reaction time is short, resulting in high yield and purity of taurine, effectively reducing costs; the process is simple to operate, safe, and efficient, facilitating large-scale industrial production.

To provide a method for effectively utilizing carbon contained in a battery material.SOLUTION: The method for producing a recycled material includes the following (a) and (b). (a) preparing a battery material; (b) Carbon contained in the battery material is reacted with sulfur to produce carbon disulfide.SELECTED DRAWING: Figure 1

The invention provides a process for preparing hydrogen by a catalytic conversion of sour natural gas, comprising feeding sour natural gas and one or more H2S recycled streams, optionally mixed with fresh C02, to a reformer reactor packed with a catalyst activated in-situ by sul fidation. An apparatus for carrying out the process, to convert sour natural gas to sweet natural gas, hydrogen and carbon disul fide, and catalysts that can be used in the process, are also disclosed.

The invention relates to the technical field of electroplating, in particular to dithiocarbonate sulfonate, a preparation method thereof and a copper plating solution. The preparation method of the dithiocarbonate sulfonate comprises the following steps: preparing an alkaline alcohol solution, wherein the alkaline alcohol solution comprises an alcohol compound; adding carbon disulfide into the alkaline alcohol solution, carrying out nucleophilic addition reaction on a certain content of the alcohol compound and the carbon disulfide to generate dithiocarbonate, and dissolving the dithiocarbonate into the residual content of the alcohol compound to obtain a reaction solution; and adding a sultone compound into the reaction solution, carrying out nucleophilic substitution reaction on the dithiocarbonate and the sultone compound, and generating and separating out the dithiocarbonate sulfonate. The synthesis route of the dithiocarbonate sulfonate is enriched, and the synthesized compound can meet the performance requirements of copper plating brighteners.

The invention belongs to the technical field of mineral flotation, and discloses a flotation collecting agent for non-ferrous metal sulfide ore and a preparation method and application thereof.O, O dialkyl dithiophosphate serves as an initial raw material of the collecting agent, and the target product O, O dialkyl dithiophosphate, halogenated carboxylic ester, hydrazine hydrate, potassium hydroxide and carbon disulfide are sequentially subjected to three-step reaction in absolute ethyl alcohol to prepare O, O dialkyl dithiophosphate; the molecular structure of the N, O-dialkyl phosphorodithioic acid hydrazide-N '-potassium dithioformate simultaneously contains three active groups, namely a phosphorodithioate group, a hydrazide group and dithioformate. By optimizing the material ratio, temperature and time of each step of reaction, efficient connection and stable transition of the process are realized, and the method has the advantages of mild reaction conditions, simplicity and convenience in operation, few side reactions, high yield, stable product and the like. And the prepared collecting agent shows excellent collecting performance and good selectivity on non-ferrous metal sulfide ores such as chalcopyrite, and is suitable for popularization and application in a sulfide ore flotation process.

The application provides a gold-bearing pyrite coarse particle flotation collector and a preparation method and application thereof. The gold-bearing pyrite coarse particle flotation collector has a general structure as shown in the specification, wherein R1 and R2 are independently selected from hydrogen, C1-C12 substituted or non-substituted alkyl, C1-C12 substituted or non-substituted saturated alkyl, C1-C12 substituted or non-substituted unsaturated hydrocarbon, and C1-C12 substituted or non-substituted cycloalkyl. The preparation method of the gold-bearing pyrite coarse particle flotation collector comprises the following steps: mixing raw materials including water, alkylamine, carbon disulfide, alkali, an oxidizing agent and EDTA, and reacting to obtain the gold-bearing pyrite coarse particle flotation collector. The gold-bearing pyrite coarse particle flotation collector is applied to gold-bearing pyrite flotation and tailing discarding. The gold-bearing pyrite coarse particle flotation collector provided by the application has multiple solid-philic groups, can make the mineral surface sufficiently hydrophobic, and can make coarse particle minerals float, so that the coarse particle mineral flotation and tailing discarding are realized.

The invention relates to a method for preparing high-purity lithium sulfide from a by-product hydrogen sulfide in production of carbon disulfide, belongs to the technical field of preparation of solid-state battery electrolyte materials, and solves the technical problems of high energy consumption, low purity, failure in high-value utilization of hydrogen sulfide and the like in existing lithium sulfide preparation. According to the solution, the method for preparing the high-purity lithium sulfide from the byproduct hydrogen sulfide during production of the carbon disulfide comprises the following steps: 1) preparing the hydrogen sulfide: preparing the carbon disulfide and the byproduct hydrogen sulfide gas from methane and sulfur; (2) preparing dimethyl sulfoxide; 3) dissolving a lithium source; 4) preparation of lithium sulfide through vulcanization reaction: placing the lithium compound dissolved solution in a reaction kettle, introducing hydrogen sulfide gas, forming a lithium hydrosulfide intermediate in an oxygen-free and water-free environment, and converting the lithium hydrosulfide intermediate into lithium sulfide; compared with the prior art, the method has the advantages that high-valued application of the hydrogen sulfide gas is realized, the purity of lithium sulfide is high, the energy consumption is low, and the green chemistry concept is met.

The utility model discloses a centralized volatilization mechanism for carbon disulfide collection, which comprises an alkali washing pool, a collection box is arranged at the top of the alkali washing pool, a separation plate is arranged between the alkali washing pool and the collection box, and the separation plate is movably connected with the collection box through a transmission mechanism; an adsorption layer is arranged above the isolation plate and divides the collection box into an upper volatilization cavity and a lower concentration cavity, heating plates are symmetrically installed on the inner wall of the concentration cavity, and an air outlet is formed in the side wall of the volatilization cavity and communicates with the condensation mechanism. The transmission mechanism is arranged to adjust the isolation plate, so that the isolation plate can be opened at a certain time interval, carbon disulfide volatilized in the alkali washing pool is subjected to centralized treatment, carbon disulfide is subjected to adsorption treatment through the adsorption layer, and the adsorption layer is heated, so that carbon disulfide gas is volatilized; and condensing to obtain liquid carbon disulfide, thereby realizing centralized treatment of volatile carbon disulfide collection.

This invention discloses a system and method for plasma reduction of sulfide ores to produce metals and carbon disulfide in the fields of non-ferrous metal metallurgy and high-value utilization of sulfur resources. The system includes a raw material preparation and conveying unit, a plasma reaction unit, and a condensation and recovery unit. The method involves mixing sulfide ore powder and carbon powder, which are then fed into a plasma gun by a carrier gas. A rapid reduction reaction occurs under ultra-high plasma temperature, generating molten metal and carbon disulfide gas in one step. The molten metal is collected at the bottom of the furnace and released. The high-temperature flue gas is rapidly cooled, dusted, and deeply condensed before being recovered as a high-purity liquid product. This invention achieves a streamlined process for sulfide ore smelting, recovers sulfur resources in a high-value form, avoids sulfur dioxide pollution, and has the outstanding advantages of high efficiency, low carbon footprint, and good economic benefits.

The application provides a carbon disulfide concentration measurement system and method based on ultraviolet light-induced conversion, and relates to the field of gas concentration detection. The carbon disulfide concentration measurement system based on ultraviolet light-induced conversion comprises a stainless steel spiral ventilation pipe, a quartz spiral ventilation pipe, a mercury lamp, a light shield, a temperature control chamber, a deuterium lamp, a first lens, a gas cell, a second lens, an optical fiber, a spectrometer and a computer; the gas inlet of the stainless steel spiral ventilation pipe is used for receiving carbon disulfide gas to be measured, the gas outlet of the stainless steel spiral ventilation pipe is connected with the quartz spiral ventilation pipe in a penetrating mode, and the stainless steel spiral ventilation pipe and the quartz spiral ventilation pipe are arranged in the temperature control chamber. When the carbon disulfide sensor technology is used to measure the carbon disulfide concentration, the problems of signal attenuation with time, difficulty in continuous long-time detection of trace carbon disulfide in an industrial environment, the need for regular maintenance and high cost of a spectral detection method instrument are solved.

The present invention provides a xanthate production system, the xanthate production system comprises an alkali adding unit, a reaction unit and a liquid storage unit, the reaction unit comprises a main reaction kettle and a continuous reaction assembly, the continuous reaction assembly comprises 1-n reaction kettles, the reaction kettles 1-n are sequentially connected, and the main reaction kettle is communicated with the reaction kettle 1; a circulating cooling device is arranged on a pipeline for communicating the main reaction kettle and the reaction kettle 1, the circulating cooling device comprises a circulating pump and a circulating cooler, the circulating pump is communicated with a discharge port of the main reaction kettle and a feed port of the circulating cooler, a discharge port of the circulating cooler is communicated with the reaction kettle 1, and a discharge port of the circulating cooler is communicated with the main reaction kettle; the main reaction kettle 1 to the reaction kettle n are provided with stirring devices; the liquid storage unit comprises a carbon disulfide storage tank, an alcohol storage tank and a solvent storage tank; the alkali adding unit, the carbon disulfide storage tank, the alcohol storage tank and the solvent storage tank are respectively communicated with the main reaction kettle; and the solvent storage tank is communicated with the reaction kettles 1-n.

The invention belongs to the field of smelting, and particularly relates to a method for reducing xanthate peculiar smell in a mineral separation workshop of a smeltery, which comprises the following steps: collecting gas above a site or equipment with xanthate peculiar smell in the mineral separation workshop, introducing the gas into a rotary supergravity machine, introducing a sodium hydroxide solution at the same time, and emptying the discharged gas of the rotary supergravity machine. According to the scheme, the collected beneficiation xanthate peculiar smell gas containing CS2 enters the rotating supergravity machine, CS2 tiny liquid drops and the sodium hydroxide washing liquid subjected to high-speed rotating atomization are intensively stirred, mixed and collided in the supergravity machine, the CS2 tiny liquid drops are promoted to be condensed and react (2NaOH (liquid phase) + CS2 (oil phase)-> Na2COS2 + H2O), and the CS2 tiny liquid drops are separated from a gas phase under the intense action of rotating centrifugal force, so that the CS2 peculiar smell gas containing CS2 is obtained. The separated CS2 tiny liquid drops flow out of the supergravity machine along with the washing liquid, so that the aim of purifying the waste gas is fulfilled. By adopting the scheme, the content of carbon disulfide in discharged gas of the rotary supergravity machine is reduced to 5.5 ppm or below, and the carbon disulfide can be directly discharged.

The invention relates to a preparation method of liquid ether modified xanthate, which comprises the following steps: weighing a certain mass of ether alcohol, putting the ether alcohol into a flask, heating in a water bath to 30-90 DEG C, slowly dropwise adding alkali liquor while stirring according to the molar ratio of the alkali liquor to the ether alcohol being (1-1.5): 1, and reacting for 1-8 hours to obtain a liquid ether alcohol sodium solution; the temperature of the sodium ether alkoxide solution is reduced to 0-40 DEG C, a carbon disulfide solution is slowly dropwise added while stirring, the molar ratio of the carbon disulfide solution to the sodium ether alkoxide is (1-2): 1, the reaction temperature is lower than 40 DEG C, stirring reaction is conducted for 1-6 hours, and the liquid xanthate is obtained. The ether group is introduced into the molecular structure of the xanthate, so that the collecting performance and selectivity of refractory ores are improved, the production cost is reduced, the working environment is improved, the production stability and the product quality are improved, the economic and social benefits are remarkable, and the popularization and application value is extremely high.

The application discloses a kind of MOCVD preparation method and device of wafer level single crystal molybdenum disulfide;The preparation method uses six carbonyl molybdenum Mo (CO) 6 and liquid carbon disulfide CS2 as molybdenum source and sulfur source respectively, different from traditional MOCVD growth process, precursor used in the application does not contain hydrogen element, avoid the side effect caused by hydrogen element, and increase the pre-reaction of source cracking, by introducing oxygen, generate intermediate product molybdenum trioxide (MoO3) and sulfur element (S) in pre-reaction chamber, to the reaction chamber on the substrate surface deposition, effectively avoid the introduction of carbon impurities, realize the nucleation and epitaxial growth of single crystal orientation on the substrate surface, obtain high uniformity and continuity single crystal molybdenum disulfide film, realize 6 inch and above size single crystal wafer scale preparation, meet the key needs of high density, high performance electronic device integration.

The invention discloses a method for qualitatively and rapidly detecting carbon disulfide in an oilfield chemical agent, and belongs to the technical field of oilfield chemical agent detection. According to the method, easily available sodium sulfide is used as a color developing agent and is subjected to color developing reaction with carbon disulfide in the oilfield chemical agent to be detected, color change after chemical reaction is distinguished by human eyes, and whether the oilfield chemical agent contains carbon disulfide or not is qualitatively judged. The method can be used for cold-color and light-color oil field chemical agents with colorless appearance or yellow, blue, green and other cold-color and light-color oil field chemical agents, and is not suitable for warm-color and dark-color oil field chemical agents with red, purple, brown, black and other warm-color and dark-color oil field chemical agents. According to the method, various analytical instruments and chemical reagents do not need to be used, carbon disulfide can be rapidly and qualitatively detected only by preparing one reagent and through one-step reagent adding operation, the color development reaction is rapid, the method has the advantages of being easy to operate, obvious in effect and low in cost, and the requirement for rapidly detecting carbon disulfide in the oilfield chemical agent in real time on site is met.

The invention discloses a low-temperature lithium-sulfur battery based on monatomic catalysis and organic sulfur electrolyte and a preparation method of the low-temperature lithium-sulfur battery. The low-temperature lithium-sulfur battery comprises a lithium negative electrode, a sulfur-carbon positive electrode, an organic sulfur added electrolyte and a monatomic catalyst modified diaphragm, and organic sulfur comprises dimethyl disulfide, tert-butyl disulfide, diphenyl disulfide, p-p-toluene disulfide, bis (2-nitrophenyl) disulfide, dibenzyl disulfide, diallyl disulfide, 4, 4 '-dipyridyl disulfide, 2, 2'-dithiobipyridine, 1, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 The low-temperature lithium-sulfur battery is one or more of 1, 1 '-dithiobis (caprolactam), 3, 3'-dithiobis (1-propanesulfonic acid) disodium salt, 2, 2 '-[dithiobis (methylene)] difuran, 3, 3'-dithiobis (propionitrile) and carbon disulfide. And the organic sulfur is added into the electrolyte to generate an intermediate product organic polysulfide through interaction between the organic sulfur and the polysulfide so as to realize depolymerization of polysulfide clusters in a low-temperature environment.

The invention discloses a trans-perovskite battery based on a carbon disulfide mixed anisole anti-solvent and a preparation method of the trans-perovskite battery, and belongs to the technical field of trans-perovskite. According to the method, a mixed solution of carbon disulfide (CS2) with low boiling point and low polarity characteristics and anisole (ANI) with high boiling point and relatively high polarity is used as an anti-solvent in the preparation process of the perovskite film for the first time, and staged optimization of the perovskite crystallization process is realized by accurately regulating and controlling volatilization kinetics of the carbon disulfide and the ANI. The rapid volatilization of CS2 induces uniform nucleation, the slow volatilization of anisole promotes grain growth, and the synergistic effect of CS2 and anisole effectively prepares the high-quality perovskite thin film. According to the trans-perovskite solar cell with the mixed anti-solvent introduced, crystal grains are more uniform, the crystal grain size is increased, the non-radiative recombination loss is greatly reduced, the defect density is reduced, and finally a high-performance device with the filling factor larger than 86% and the photoelectric conversion efficiency larger than 26% is achieved.

This invention provides a method for photo-oxidative treatment of arsenic sulfide slag, comprising the following steps: adding water to the arsenic sulfide slag to adjust the initial arsenic sulfide mass concentration to 2%-20%, adjusting the initial pH to 3-6, adding 2-10% carbon disulfide extractant, controlling the light source to illuminate from the side, and simultaneously stirring and aerating to carry out photo-oxidative leaching; after leaching, separating the organic phase and aqueous phase, cooling the organic phase to precipitate elemental sulfur, stabilizing the filtrate by adding iron and calcium salts, returning the stabilized pressurized filtrate to the photo-oxidative leaching system, and ensuring the filter residue meets the landfill standards for flexible landfills. This method is simple, requires no added chemicals or additional catalysts for oxidation, and directly utilizes the ubiquitous visible light oxidation in nature to achieve safe landfill disposal of high-arsenic slag, resulting in low disposal costs. Furthermore, the photo-oxidation product directly yields elemental sulfur in the solid phase, achieving resource recycling of sulfur.